78 lines
2.2 KiB
JavaScript
78 lines
2.2 KiB
JavaScript
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import { existsSync, readFileSync } from "node:fs";
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import { createRequire } from "node:module";
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import { dirname, resolve } from "node:path";
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import { fileURLToPath } from "node:url";
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const repoRoot = resolve(dirname(fileURLToPath(import.meta.url)), "..");
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const require = createRequire(import.meta.url);
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const coreDistPath = resolve(repoRoot, "packages/core/dist/index.js");
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if (!existsSync(coreDistPath)) {
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throw new Error(`Missing built core package at ${coreDistPath}. Run npm run build first.`);
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}
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const { applyVoidSelfStateOperation } = require(coreDistPath);
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async function main() {
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const [command, ...rest] = process.argv.slice(2);
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const args = parseArgs(rest);
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if (command !== "apply-operation") {
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throw new Error("Expected command: apply-operation.");
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}
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const canonicalPath = requirePathArg(args, "canonical");
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const operation = readOperation(args);
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const result = await applyVoidSelfStateOperation({ canonicalPath }, operation);
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process.stdout.write(`${JSON.stringify(result)}\n`);
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}
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function readOperation(args) {
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if (typeof args.operation === "string" && args.operation.trim().length > 0) {
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return JSON.parse(args.operation);
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}
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if (typeof args["operation-file"] === "string" && args["operation-file"].trim().length > 0) {
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return JSON.parse(stripLeadingBom(readFileSync(resolve(args["operation-file"]), "utf8")));
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}
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throw new Error("apply-operation requires --operation JSON or --operation-file path.");
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}
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function parseArgs(argv) {
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const args = {};
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for (let index = 0; index < argv.length; index += 1) {
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const token = argv[index];
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if (!token.startsWith("--")) {
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continue;
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}
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const key = token.slice(2);
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const next = argv[index + 1];
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if (!next || next.startsWith("--")) {
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args[key] = "true";
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continue;
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}
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args[key] = next;
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index += 1;
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}
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return args;
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}
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function requirePathArg(args, key) {
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const value = args[key];
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if (typeof value !== "string" || value.trim().length === 0) {
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throw new Error(`Missing required --${key} path.`);
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}
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return resolve(value);
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}
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function stripLeadingBom(input) {
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return input.charCodeAt(0) === 0xfeff ? input.slice(1) : input;
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}
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await main();
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